PURPOSE: To determine the value of magnetic resonance (MR) imaging in
diagnosing traumatic pseudomeningocele. MATERIAL AND METHODS: Five new
born infants with brachial plexopathy secondary to traumatic delivery
underwent MR imaging of the spine and serial neurologic examinations,
and the findings were compared. RESULTS: Cervical MR images showed foc
al collections of cerebrospinal fluid lateral to the spinal cord and e
xtending into the neural foramina. These were believed to represent ps
eudomeningoceles in four infants, all of whom have persistent major ne
urologic deficits. The infant with normal cervical MR images has had n
early complete spontaneous recovery. CONCLUSION. Spinal MR images can
show pseudomeningoceles, which have been associated with partial or co
mplete nerve root avulsion in infants with birth-related brachial plex
opathy.